Hi My name is Jean-Louis, ZS6AAG i am experimenting with uplink to the satellite with antenna logarithnic 12db, one hackrf and one ampli 2.4ghz 8 watts from china, can i attack directly the wifi amplifier or i need something between the hackrf and the wifi amplifier, many thanks for your answer

Software DVB-S demodulator

around last Year i've developed a DVB-S Receiver in Software to learn more about Signal Processing and Multithreading/SIMD Optimization. This software is supposed to be the starting point for experimenting and implementing my own DVB-S receiver on a FPGA Board. It has mainly been written for personal use, so it's not very user-friendly.

Maybe this is also interesting for you, because there are many people here with SDR Boards.

I hope that you can give some Feedback and constructive criticism.

This Software does only run on quite modern CPUs with SIMD instruction sets and AVX support. Should be Intel Haswell and above.

There are a few Screenshots attached as a reference how things should look like

MPEG-TS output is localhost, UDP at port 8888.

Tested with RTL-SDR and hackrf. LimeSDR is not tested, maybe it works, maybe not.

DVB-S2 is being experimented with, but there is only DVB-S1 support for now.

@IK0EQJ: Try to change the symbol rate, which transponder and satellite is this? Is 300ksym/s correct? If gain and symbol rate settings are correct, you should see a circle inside the constellation plot.

Also watch the 'Buffers' count on the bottom of the window. This tells if your computer is able to keep up, this value should stay low without increasing a lot.

but i've implemented experimental DVB-S2 support and did first tests with the Es'Hail 2 WB Transponder. A screenshot is attached to this post. I think that i'll be able to release another test version for you next weekend. I'll need to optimize the code a bit, throw unused stuff out, and fix the issues many of you have. This version will come with enhanced debug output.